Vijayarani Narayanan* Jocelyn Tandoh Carla Sena Egle Maksimovaite
Hypothesis
Frequency of polymorphism of Snails (Cepaea Nemoralis) will be high in certain habitats such as the woodlands and scrub. There will be some selection. Gene flow and genetic drift will account for variation.
Null Hypothesis
Frequency of polymorphism of snails (Cepaea Nemoralis) will not be high in certain habitats which suggests gene flow. There will be no selection. Variation will not be down to gene flow and genetic drift.
Design We decided to place 2 transects going from top to bottom to sample for altitude-climate differences along each of the transects. We will be placing the samples along the transects e.g. some close together and some far apart . Samples will be placed 20meters apart to account for gene flow and independence. All other variables apart from altitude/climate will be kept constant. 3 samples will be taken from each habitat e.g. scrub and woods. We are comparing 2 sites, the bushes and woodlands so there are a total of 3 samples in each of the sites so there is replication A total of 6 samples will be taken. for further replication we can combine data with another group so there will be 6 samples in each site.
We are not taking samples at random as we want to collect consistently from each habitat on the basis of utility.
Advantages of the design:
We are measuring variation in altitude/climate so all other variables will be kept constant. We are only comparing 2 sites out of the three to optimise replication of data.
Disadvantages of the design:
We only have a limited number of 6 samples and also limited time. We are not taking samples from the open space habitat. We are not taking variables apart from climate/altitude in to account.
Revisions underlined.
Group
Vijayarani Narayanan*
Jocelyn Tandoh
Carla Sena
Egle Maksimovaite
Hypothesis
Frequency of polymorphism of Snails (Cepaea Nemoralis) will be high in certain habitats such as the woodlands and scrub. There will be some selection. Gene flow and genetic drift will account for variation.
Null Hypothesis
Frequency of polymorphism of snails (Cepaea Nemoralis) will not be high in certain habitats which suggests gene flow. There will be no selection. Variation will not be down to gene flow and genetic drift.
Design
We decided to place 2 transects going from top to bottom to sample for altitude-climate differences along each of the transects. We will be placing the samples along the transects e.g. some close together and some far apart . Samples will be placed 20meters apart to account for gene flow and independence. All other variables apart from altitude/climate will be kept constant. 3 samples will be taken from each habitat e.g. scrub and woods. We are comparing 2 sites, the bushes and woodlands so there are a total of 3 samples in each of the sites so there is replication A total of 6 samples will be taken. for further replication we can combine data with another group so there will be 6 samples in each site.
We are not taking samples at random as we want to collect consistently from each habitat on the basis of utility.
Advantages of the design:
We are measuring variation in altitude/climate so all other variables will be kept constant. We are only comparing 2 sites out of the three to optimise replication of data.
Disadvantages of the design:
We only have a limited number of 6 samples and also limited time. We are not taking samples from the open space habitat. We are not taking variables apart from climate/altitude in to account.